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(No Model.) z sheets-sheet 1.

A. C. CHRISTENSBN.

WATER AND STEAM METER.

YPaubented Sept.v 30, 18841 A INVENTOR:

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Il m WWNESSES z j? (Nn Model.) 2 Sheets-Sheet 2.

A. C. (}`r"[RIS'IEl\ISE1\Il WATER AND STEAM METER'. No. 305,893.` Patented Sept. 30, 1884. f

N. PRINS. mvumnvaphr. wmdngtmnc.

UNITED STATES Barnier @rr-arcs.

fo all w'wmpit may concern:

AUeUs'r c. onm's'rnnsnn, or BROOKLYN, NEW Yoan.

WATER AND STEAM 'M ETER.

srncrrrcarroiv forming part of Letters Patent No. 305,893, aerea september so, 1884.

Application filed May 1,1884. (No model.)

Be itknown that I, AUGUST C. Cnnrsrmr-v SEN, of Brooklyn, county of Kings, and State oi' New York, have invented cert-ain new and useful Improvements in Vater and `Steam Meters, of which the following is a specification.

rlhis invention relates to certain improvements in the 'water and steam meter for which Letters Patent have been granted to me heretofore, No. 269,260, dated December 19, 1882, the improved construction being more especially designedfor use as a steam-meter. Practical tests have demonstrated that as' steam moves much more rapidly than water, the pistons require only a small port-opening,- and that consequently the use of the gridironvalves which formed the essential feature of my former patent can be dispensed with.

The invention consists of an in closing-casing having a chest at the upper part and abottom chamber with diagonally-crossing channels at the lower part, reciprocatory plunger-s or pis- `tons having channels forming slide-valves,

said channels communicating with the chest and with the diagonal bottom channels of the casmg.

The invention consists, secondly, of springbuh'ers having cup-shaped faces arranged in sockets of the heads of the casing and retained by interior projecting collars.

In the accompanying drawings, Figure l represents a vertical longitudinal section of my improved water and steam meter online y y,

'of two hollow cylinders that Aare arranged side- Wise of each other and closed by heads A2. A

` chamber or chest, A3, is arranged at the top of the cylinders A A', and surmonnted by a counter or register, A. The spindle a of the registering mechanism A* is supported at its lower end by a spring, a', which imparts the necessary friction to the spindle, while a ratchet-wheel, a2, at its'middle portion is engaged y by a spring-pawl, a, which is p'ivoted to a lever, c, the outer end of which works in a notch of one of the plungers, while the inner 5 end is connected by a sleeve, awith the spindle c, as shown in Fig. 33 The counter A4 and its actuating mechanism are well known and used in all water-meters with reciprocating plungers. piece with the top chest, A3, and with an oblong chamber, A5, at the lower part of the casing, said top chest and bottom chamber being provided, respectively, with an ,inlet-port, b,

and an outlet-port, b. 6

The plungers B B are cylindrical in shape, and fit closely to the interior of the cylinders A A. These plungers are provided with channels extending through them, so as to serve for the double purpose of measuring the 7o water or steam and for acting as each others slide-valve.

The channels cZ d and m and m of the cylinder A are preferably arranged in the form of a B-valve,while the channels d2, d3, and m2 of 7 the cylinder A form, preferably, a D-valve. An inlet-opening, c, connects the channels d d of the plunger-valve B with the chest A3, While the plunger B is provided with an inlet-open- The casing A is cast in one 6o ing, c', which communicates with its channels 8o d? di. The channels d d of the plunger B communicate, respectively, with the channels h h. of the bottom chamber of the cylinder A, as said plunger moves alternately from one end of the cylinder to the other, while the chan- 85 nels di d of the plunger B communicate, respectively, with the channels h2 h3 of the cyliuder A. A diagonal channel, t', connects the channel h of the cylinder A with the left-hand end ofthe plunger B by means of the curved 9o channel m of the plunger B and the vertical channels 7c and Z of vthe bottom chamber, A5. The diagonal channel Z connects the channel 71.3 of the cylinder A with the right-hand end of the plunger B, by the vertical channel Z3. 95

(lorrespondingly the diagonal channel i2 connects the channel h2 of the cylinder A with the left-hand end of cylinder A by the vertical channel Z2, while the diagonal channel 'i3 connects the channel h of cylinder A with roo the right-hand end of cylinder A by the curved channel m of the plunger B and the vertical channels k Z.

The reciprocatory plungers B B are pre- -gridiron valves.

vented from rotatingy on their axis by means of longitudinal guide-.pins o o, secured to one of the heads A2'of the cylinders A A', said guide-pins extending into corresponding holes, 0' o', of the plungers B B', as shown in Figs. 1 and 4. i'

-Each head A2 ofthe cylinders A A' is provlded vwith spring -buffers D D, which are formed of cup-shaped plates and cushioned by spiral springs D'. The spring buffers D are arranged in socket shaped extensions D2 of the heads A2, as shown clearly in Fig. 1. The spring-buffers D serve to cushion the plungers, so that they produce only a gentle touch against the heads and make the meter Work almost noiselessly. The spriug-buffersD are retained inthe sockets D2 by inwardly projectingv ringshaped collars Dwhich are attached to ,the inside of the heads A', as shown in Figs, l and 4.

The operation of my improved mete;` is the same as that given in detail in my prior pat-ent heretofor referred to, With the exception that the narrow ports c c' of the the plungers B B' serve as inlet-ports for the steam, and that the gridiron-valves are dispensed with. As the meter is mainly designed to be used with steam,

,and as steam moves much more rapidly, the

ports c c' can be made comparatively small, while the plungers can perform the function of opening the ports without the aid of the The meter can, however,

also be used as a Water-meter. The construction of my improved meter is 1Still more simplied, as the gridiron-valves are dispensed 35 With.

Having thus described my invention, Iclaim as new and desire to secure by Letters Patent- 1. In a steam-meter, the combination of the reciprocating plungers B B', provided with 4o holes o' o' and pins o o, secured to the heads A2 and projecting into said holes, substantially as, described.

2. In a steam-meter, the combination of the Vheads Azof the cylinders A A', the spring- 45 buffers D D, the cushioning-springs D', and reciprocating plungers having B-shaped and D-shaped channels, substantially as and `for the purpose set forth.

3, The combination of the inclosing-casing 5o having heads with outwardly-projecting sockets and interior ring shaped Collars, reciprocatory plungers or pistons, and sp-ringfbnifers formed'of cup-shaped plates and cushioningsprings, the spring-buffers being retained in 55 the sockets ofthe cylinder heads by said projecting collars, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name .in pres.- ence of ztwo subscribing Witnesses,

A.- 'Q- -CHRISTENSEN Witnesses: PAUL Gonrni., ,Sinni-TY MANN- 

